nudge4j.lambda.in.java.8.java

//
// Using Lambda in java 8 
// Inspired by https://blogs.oracle.com/nashorn/entry/nashorn_and_lambda_what_the
//

var copyright = 
'/*                                                                               \n'+
' * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.  \n'+
' *                                                                               \n'+
' * Redistribution and use in source and binary forms, with or without            \n'+
' * modification, are permitted provided that the following conditions            \n'+
' * are met:                                                                      \n'+
' *                                                                               \n'+ 
' *   - Redistributions of source code must retain the above copyright            \n'+
' *     notice, this list of conditions and the following disclaimer.             \n'+   
' *                                                                               \n'+
' *   - Redistributions in binary form must reproduce the above copyright         \n'+ 
' *     notice, this list of conditions and the following disclaimer in the       \n'+ 
' *     documentation and/or other materials provided with the distribution.      \n'+
' *                                                                               \n'+
' *   - Neither the name of Oracle nor the names of its                           \n'+
' *     contributors may be used to endorse or promote products derived           \n'+
' *     from this software without specific prior written permission.             \n'+ 
' *                                                                               \n'+ 
' * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS       \n'+
' * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,     \n'+
' * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR        \n'+
' * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR             \n'+
' * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,         \n'+
' * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,           \n'+
' * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR            \n'+
' * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF        \n'+ 
' * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING          \n'+
' * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS            \n'+
' * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.                  \n'+
' */'; 



var Collectors = java.util.stream.Collectors;

// Break the copyright into tokens.
var tokens = copyright.split(/\s+/);

// Convert to ArrayList.
var list = new java.util.ArrayList();
tokens.map(function(e) list.add(e));

// The JavaScript collection for the result.
var result = [];

// Parallelize some of the activity.
list.parallelStream().
    
// Select only words.
filter(function(t) t.match(/^[A-Za-z]+$/)).

// Make case comparable.
map(function(t) t.toLowerCase()).

// Fold duplicates.
collect(Collectors.groupingBy(function(t) t)).

// Move results to JavaScript collection.
forEach(function(t) result.push(t));

// Sort the result.
result.sort();

// display
result.join('<br>');